• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.137-139
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• 2017

During the last decade, the most competitive field may be smartphone industry. Among various smartphone brands, iphone of Apple and Galaxy series of Samsung have continue to keep the hot race of competition. In this point, this study attempts to analyze big data on two the two brands in SNS and to compare the major characteristics and preference of users.

• Proceedings of the Korea Information Processing Society Conference
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• 한국정보처리학회 2010년도 추계학술발표대회
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• pp.1514-1517
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• 2010

최근 출시된 IPhone이나 Android Phone들을 보면 인터페이스의 편리성과 엔터테이먼트적인 요소의 극대화를 위한 가속도센서, 디지털 나침반, 근접센서, 조도센서 등, 다양한 센서들을 디바이스에 포함하고 있다. 이들 중 가속도 센서를 이용한 다양한 인터페이스가 여러 스마트폰 게임과 어플리케이션들에서 사용되고 있는데 본 논문에서는 가속도 센서의 각축의 값들을 이용해 문자나 특정 입력 값을 기기에 전달할 수 있는 제스처 인식을 위한 센서 값들의 효율적인 사전 보정 알고리즘에 대해서 제안하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 한국정보처리학회 2011년도 추계학술발표대회
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• pp.1100-1101
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• 2011

1990년대에 비해서 운전자의 연령층이 상대적으로 낮아지고, 여성 운전자가 급속하게 증가하면서 교통량증가에 따른 교통사고가 급격히 증가하고 있지만, 운전자에 대한 안전 교육이 미비하여 자동차에 대한 전반적인 전문 지식이 없는 운전자가 늘어나고 있다. 본 논문에서는 자동차 사고시 대처 방법 및 차량 관리 방법 등에 대한 교육이 필요하다는 점과 2009년 말 이후 스마트폰의 보급률이 폭발적으로 급증하고 있는 점에서 착안하여 스마트폰을 이용하여 간단한 사고 대처 요령부터 계절별 차량 관리 방법과 스마트폰에 내장된 GPS를 이용하여 현 위치에서 가까운 자동차 제조사별 서비스센터 및 지역별 서비스센터 정보를 검색 및 연락을 가능하게 하는 자동차 사고 119 어플리케이션을 설계 및 구현하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 한국정보처리학회 2011년도 추계학술발표대회
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• pp.1441-1444
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• 2011

본 논문은 최근 스마트폰의 이용률의 급증에 따라 각종 애플리케이션이 개발되고 있는 가운데, 20세기 민중생활사 연구단의 무형문화유산 디지털 아카이브즈 시스템의 자료 입력과 자료 검색을 보다 편리하게 접근하고 효율적으로 사용하기 위한 방안을 제시한다. 이를 위해 아이폰의 기본 기능(GPS, 사진 및 동영상 촬영 등)을 활용하여 시간과 장소에 구애받지 않으면서 아카이브즈 자료를 손쉽게 업로드하고 검색 할 수 있는 무형문화유산 디지털 아카이브즈 애플리케이션을 구현하였다.

• Electronics and Telecommunications Trends
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• 제38권3호
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• pp.86-97
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• 2023

The outbreak of the novel coronavirus disease in 2020 caused a global semiconductor supply shortage and disruption in the production of devices such as iPhones owing to China's quarantine lockdown. Thus, Apple is diversifying its production bases from China to countries like India and Vietnam. The company is also accelerating semiconductor development to guarantee a stable supply, reduce design costs, and customize semiconductors with high quality and outstanding specifications for their products to outperform devices that use general-purpose semiconductors. Following the mobile application processor, Apple is releasing world-class semiconductors, such as the M1 and M2 chips that play the role of central processing units.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• 제10권4호
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• pp.63-68
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• 2010

Mobile devices like iphone, ipad, kindle, and PDA are used as everyday tool. In the mobile environment, smart phones and other mobile units are also used as a tool for protection or infringement of personal information. Therefore, smart monitoring technology is required to protect personal information and privacy. On the other hand, with smart phones and the mobile environment, diverse application technologies are realized on hardware and software platforms. Therefore, this paper designs the network structure that forms privacy trust zone, and based on this, deals with the monitoring and monitoring prevention system with a focus on CCTV, through which this paper proposes a system that provides privacy trust zone information and its utilization which is capable of smart monitoring.

• Journal of the Korean Institute of Intelligent Systems
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• 제23권1호
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• pp.29-34
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• 2013

This study presents the remote control of a mobile robot using iPhone based on ad hoc communication. Two control interfaces are proposed to control a mobile robot using iPhone : Remote control by a user and autonomous control. To evaluate the effectiveness of algorithms for trajectory following, a simulator are developed where a virtual robot follows a referenced trajectory in a monitor by iPhone interface. In the proposed simulator, some algorithms are tested how they work well or not for trajectory following of a mobile robot. Comparative results by remote user control and autonomous control are shown. Results of an experiment show that the proposed simulator can be effectively used for testing the effectiveness of autonomous tracking algorithms.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 한국해양정보통신학회 2011년도 추계학술대회
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• pp.511-514
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• 2011

Recently, devices such as smartphone and vehicle blackbox and EDR(Evern Data Recorder knowed automotive real-time control and driving data to use OBD-2(in-vehicle network). when devices receive vehicle driving data, communication way use each Wifi, Bluetooth. but if user and driver change device to use OBD-2 connect, the device differ communication network way. and driver buy and change OBD-2 connect. In this paper, to remedy one's shortcomings, there integrate Bluetooth and Wifi network module and design integrability hardware as any another device know vehicle real-time control and driving data with one integrability connect.

• The KIPS Transactions:PartA
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• 제19A권3호
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• pp.155-160
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• 2012

This paper designed a smartphone application with sequence problems which users can improve their learning ability and this application is implemented as serious game which is designed for the special purposes of education with entertainment and game-like fun at anytime and anywhere during the spare time. Also to prove learning effects through sequence of number application under ubiquitous environment which is popular these days, the proposed serious game which has various types of sequence questions is implemented based on the iphone and android environments. User characteristics and learning effects which are based on game record of proposed application are analyzed according to socio-demographic characteristics.

• Journal of Digital Convergence
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• 제12권4호
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• pp.319-326
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• 2014

According to the increasing mobile security users who have experienced authentication failure by forgetting passwords, user names, or a response to a knowledge-based question have preference for biological information such as hand geometry, fingerprints, voice in personal identification and authentication. Therefore biometric verification of personal identification and authentication for mobile security provides assurance to both the customer and the seller in the internet. Our study focuses on human hand biometric information recognition system for personal identification and personal Authentication, including its shape, palm features and the lengths and widths of the fingers taken from mobile phone photographs such as iPhone4 and galaxy s2. Our hand biometric information recognition system consists of six steps processing: image acquisition, preprocessing, removing noises, extracting standard hand feature extraction, individual feature pattern extraction, hand biometric information recognition for personal identification and authentication from input images. The validity of the proposed system from mobile phone image is demonstrated through 93.5% of the sucessful recognition rate for 250 experimental data of hand shape images and palm information images from 50 subjects.